package com.itheima.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.conditions.query.LambdaQueryChainWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.common.R;
import com.itheima.entity.Employee;
import com.itheima.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.nio.charset.StandardCharsets;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

    /*员工登录
    * */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
        //1....提交的密码进行nd5加密
        String password = employee.getPassword();
        password=DigestUtils.md5DigestAsHex(password.getBytes());
         //2...根据提交的用户名查找数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);
         //3..如果没有查询到返回登录失败结果
        if(emp==null){
            return R.error("登陆失败");
        }
        //4..密码比对。失败返回失败结果
        if(!emp.getPassword().equals(password)){
            return R.error("登陆失败");
        }
        //5。。查看员工状态查看是佛i被拉黑
        if(emp.getStatus()==1){
            return R.error("账号已禁用");
        }
        //6..登陆成功，将员工存入Session并返回登陆结果
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }
    /*员工退出
    *
    * */

    @PostMapping("/logout")
    public  R<String> logout(HttpServletRequest request){
        //清理Sessiom中保存的当前登陆的员工信息
        request.getSession().removeAttribute("employee");
       return  R.success("退出成功");
    }

    /*
    * 新增员工
    * */
    @PostMapping
   public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
     log.info("新增员工，员工信息 {}",employee.toString());
     //设置nd5加密
     employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

     //employee.setCreateTime(LocalDateTime.now());
     //employee.setUpdateTime(LocalDateTime.now());

     //获得当前用户登陆的id
       // Long empId =(Long) request.getSession().getAttribute("employee");

       // employee.setCreateUser(empId);
     //   employee.setUpdateUser(empId);

        employeeService.save(employee);
       return R.success("新增员工成功");
   }


   /*
   * 员工信息的分页查询
   * */
    @GetMapping("/page")
   public R<Page> page(int page,int pageSize,String name){
        log.info("page={},pageSize={},name-{}",page,pageSize,name);

        //分页构造器
        Page pageInfo = new Page(page, pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper=new LambdaQueryWrapper();

        //添加过滤条件
       queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);

        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        //执行查询
        employeeService.page(pageInfo,queryWrapper);
     return R.success(pageInfo);
   }

   /*
   * 根据id修改员工信息
   *
   * */
    @PutMapping
        public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
         log.info(employee.toString());

         long id=Thread.currentThread().getId();
         log.info("线程id为：{}",id);
      //  Long empId =(Long) request.getSession().getAttribute("employee");
       // employee.setUpdateTime(LocalDateTime.now());
        //employee.setUpdateUser(empId);
        employeeService.updateById(employee);
        return R.success("员工信息修改成功");


        }

        /*
        * 根据id查询员工信息
        * */
        @GetMapping("/{id}")
        public R<Employee> getById(@PathVariable  long id){
          log.info("根据id查询员工信息");
            Employee employe = employeeService.getById(id);
           if (employe!=null){
               return R.success(employe);
           }
           return  R.error("没有查询到员工信息");

        }

}
